Title:
鉄鋼スラグの選別方法、鉄鋼スラグの再利用方法および製鉄用原料の製造方法
Document Type and Number:
Japanese Patent JP6604346
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a sorting method which can select steel slag into three or more types in a form suitable for reuse while suppressing an increase in magnetic force sorting steps.SOLUTION: The sorting method of steel slag comprises: a crushing step of crushing steel slag to produce crushed slag; a first magnetic force sorting step of sorting the crushed slag into first magnetic substances and first non-magnetic substances; a classification step of sieving the first magnetic substances into coarse grains and fine grains; and a second magnetic force sorting step of sorting the fine grains into second magnetic substances and second non-magnetic substances. The method further includes a drying step of drying at least one of the crushed slag, the first magnetic substances and the fine grains.SELECTED DRAWING: Figure 1
Inventors:
High Yuki Ki
Kohei Ishida
Shindome Hidemine
Nihei Mahikari
Kazuki Tanemura
Takahiko Maeda
Kohei Ishida
Shindome Hidemine
Nihei Mahikari
Kazuki Tanemura
Takahiko Maeda
Application Number:
JP2017035278A
Publication Date:
November 13, 2019
Filing Date:
February 27, 2017
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
B03C1/00; C21C5/28; B07B1/00; B07B1/28; B09B3/00; B09B5/00; C21C7/00; C22B7/04; F27D15/00
Domestic Patent References:
| JP42022135B1 | ||||
| JP54157380A | ||||
| JP59123706A | ||||
| JP2007138209A | ||||
| JP54126619A |
Attorney, Agent or Firm:
Isomura Tetsuro
Akira Kumasaka
Tetsuya Sakai
Kazuhiro Mori
Akira Kumasaka
Tetsuya Sakai
Kazuhiro Mori